Move common.h into common library

Signed-off-by: Ikey Doherty <ikey@solus-project.com>

src/common/files.c

@@ -18,7 +18,7 @@
 #include <sys/stat.h>
 #include <unistd.h>
 
-#include "../common.h"
+#include "common.h"
 #include "files.h"
 #include "nica/util.h"
 

src/intercept/main.c

@@ -17,7 +17,7 @@
 #include <stdlib.h>
 #include <sys/stat.h>
 
-#include "../common.h"
+#include "../common/common.h"
 #include "nica/util.h"
 
 static inline bool lsi_file_exists(const char *path)

src/lsi/lsi.h

@@ -19,7 +19,7 @@
 #include <stdlib.h>
 #include <unistd.h>
 
-#include "../common.h"
+#include "../common/common.h"
 #include "config.h"
 
 /**